Essays about: "moisture in transformers"

Found 5 essays containing the words moisture in transformers.

  1. 1. Finite Element Simulation of Moisture Transport in Cellulose Insulation Material of Power Transformers

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Luc Villibord; [2023]
    Keywords : ;

    Abstract : Power Transformers are an important and complex part of the electrical transmission technology. One of the main producers of these transformers worldwide is Hitachi Energy, for which this work has been done. READ MORE

  3. 2. Analysis of Resin Impregnated Non-woven : In collaboration with Hitachi Energy

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Ahmed Abdulkareem Najm Al-Saedi; Anders Hedenfeldt; Andrea García; Anna-Karin Kron; Cornelia Bergström; Lova Källkvist; [2022]
    Keywords : resin impregnated non-woven; bushings; composite; resin impregnated paper; tensile; bending; permeability; mechanical properties;

    Abstract : High voltage bushings are the most critical components of power transformers. A common material used in bushings is resin impregnated paper (RIP). Hitachi Energy is investigating whether this can be replaced with a new material, resin impregnated non-woven (RIN). READ MORE

  4. 3. Dynamic transformers rating for expansion of expansion of existing wind farms

    University essay from KTH/Elektroteknisk teori och konstruktion

    Author : Oscar David Ariza Rocha; [2019]
    Keywords : Dynamic transformer rating; wind energy; loss of life; wind farm expansion;

    Abstract : Distribution system operators face the challenge to connect users rapidly to the grid and the opportunity to reduce costs for new connections. A method to enhance network operation and planning is dynamic transformer rating (DTR), which considers load and temperature variations to increase the rating of the transformer while maintaining in safe operation. READ MORE

  5. 4. Design of Experimental Setup for Investigation of Effect of Moisture Content on Transformer Paper Ageing during Intermittent Load

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Patrik Gustafsson; [2018]
    Keywords : Dynamic Transformer Rating; transformer; moisture content; paper ageing; cellulose ageing; intermittent load; experiment; experimental setup;

    Abstract : In this project an experimental setup is designed to investigate the effect of intermittent load patterns in combination with moisture content on cellulose ageing. It is done by exposing groups of samples to different intermittent load patterns with varying frequency. READ MORE

  6. 5. Investigation of the effect of moisture in transformers on the aging of the solid insulation for dynamic rating applications

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Christos Stefanou; [2018]
    Keywords : Dynamic rating; dynamic transformer rating; moisture in transformers; aging of transformer insulation; cellulose aging; solid insulation aging; experiment.; Dynamisk last; dynamisk transformatorklassificering; fukt i transformatorer; åldrande av transformatorisolation; åldrande av cellulosa; åldrande av fast isolation; experiment.;

    Abstract : In the present thesis an investigation is performed for the effect of moisture contenton the aging of the solid insulation for transformers that are dynamically loaded. Theinvestigation is based on a theoretical analysis and a model. READ MORE